Rail fastening



A. C. JACK Oct. 6, 1931.

RAIL FASTENING Filed March 19, 1931 zllll'il'ln- Patented Application filed f 'This invention relates to rail fastenings and, while not limited thereto, relates more particularly to means for securing rails to tie or sole-plates forming rail seats, and has n for one of its objects the provision of a novel fastening of this class which be elastic under extreme loads. v

other object is to provide a fastening of this class which will have a uniform initial in tension applied to the rail through the clamps at all slee ers or ties. v I

In the swings: V Figure 1 is a plan view ofa section of rail secured to a tie by the fastening of this in- 15 vention. I

Figure 2 is a cross-sectional elevation. Figures 3 and d are elevations of bolts used in the fastening.

. Figure is a sectional view taken on the 29 line V-V of Figure 2. I

' 1 fer-ring more particularly'to the drawings, the numeral 2 designates the sleeper or tie. A tie or sole-plate 3 is fastened by screw spikes 4 to the tie and is provided with riblike projections 5 between which the rail 6 is mounted. The projections 5 are provided with undercut transverse recesses 5 to reeeive the heads 7 of bolts 8 which have nuts 9 on their upper threaded ends bearing through spring washers 10 on clips 12 which hold the rail down... I

Each of the clips 12 has a central portion 13 passing over the shank of the bolt 8, an

outer leg 14 bearing on the tie-plate 3, and

tion of the ase flange 16 of the rail 6.

The bolts 8 have their shanks threaded for a short distance from their unthreaded end, as at 17, and have the remainder of their of the bolt shank is of such length that it leaves a length of unthreaded bolt shank 8 projecting upwardl above the clip 12. The projecting unthrea ed portion of bolt shank is of less of the sprin washer 10 and of greater length than the cofiapsed dimension of the spring washer.

The bolts 8 may have their threaded end 60 portions 17 of the same diameter as the reinner le hearing on the marginal porc shanks unthreaded. The threaded portion I ength than the extended dimension 19, 1981. Serial No. 5%,819.

mainder of the shank, as shown injFigure 3, or may have their threaded portion of a slightl less diameter than the remainder of thebo t shank, as shown in Figure 4, so as to provide a shoulder 20 against which the so "nuts 9 may be forced.

With either form of bolt the nuts 9 will be preferably threaded to the limit of the threaded portion 17" of the bolt shank, thus providing a uniform tension on all the spring washers 10.

The length of unthreaded bolt shank pro-' jecting above the clips 12 will be liini to an amountwhich. will provide for suficient tension being placed on the spring washers 10 by the nuts 9 to apply an amount of initial pressure to prevent the rail from creeping.

le .1 have shown my invention as applied to a construction in which a sole or tieplate is used of suitable dimensions for application to a single tie, it will be understood that I do not wish to be limited to this construction since the same novel features may be used with sole or-tie-plates of greater length and used to bridge over two or more ties in forming rail joints.

When rails are joined the abutting ends are located adjacent the center of the tie plate and suitable splice-bars are mounted along each side of the rail joint to secure the rails together in the usual manner. 7

When metal, concrete or other than wooden ties are used belts or other seen means may be substituted for the spikes 4.

Various other modifications may be made by those skilled in the art without departin from the sec of my invention, as define in the appen ed claims.

I claim:

1. In arail fasteninghaving a rail seat with rib-like projections between which the rail can rest, said projections being provided with undercut transverse recesses, clips be striding said projections and having one leg engaging said rail seat and the other leg positioned to engage the base flange of the rail, bolts for holding down said clips, said bolts having their heads inserted in said transverse recesses in said ribs and having their shanks projecting a material distance above said clips, spring washers mounted around the rail,

portion of its shank length than the extended dimension of said said bolts, said bolts having their upper ends threaded and having an nut-breaded portion of shank extending above said clips, said un threaded portion of bolt shank being of less length than the extended vertical dimension of said springs and of a greater length than the collapsed vertical dimension of said springs, and nuts threaded on the I upper threaded ends of said bolts to the limit of the threads to tension said spring washers uniformly.

2. In a rail fastening having a rail seat on which the rail can rest and a clip having one leg. engaging said rail seat and the other leg positioned to engage the base flange of a bolt for holding down said clip, said bolt having its head engaged with said rail seat and havin its shank projecting through and a material distance above said clip, a spring washer mounted around said bolt, said bolt having its upper end threaded and having an unthreaded portion of shank extending above said clip, said unthreaded portion of bolt shank being oi less length than the extended vertical dimensions of said spring and of greater length than the collapsed vertical dimension of said spring, and a nut threaded home on said bolt to tension said spring.

3. In a rail fastening having a rail seat on which the rail can-rest, means for clamping the rail in position, said means including a rail engaging clip, a bolt secured to said rail seat and projecting through said clip, a coiled spring washer mounted around said bolt above said clip, said bolt having its upper end threaded and having an unthreaded above said clip of less spring washer and a greater length than the collapsed dimension of said washer, and a nut threaded home on said threaded end of said bolt to tension said spring.

4. In a rail fastening having a rail seat on which the rail can rest, means for clamping the rail in position, said means including a rail engaging clip,a bolt secured to said rail seat and prO ecting through said clip, a coiled spring washer mounted around said bolt above said clip, said bolt having its upper end threaded and having an unthreaded portion of its shank above said clip of less length than the extended dimension of said sprm washer and a greater length than the co said bolt and seated on top clip, a coiled spring washer mounted around of said clip, said bolt having its upper end threaded and having an unthreade portion of shank rojecting above said clip of lesser length t an the extended dimension of said spring washer and of a greater length than the colla sed dimension of said spring washer, said t readed upper end of said boltbeing of less diameter than the unthreaded portion of said bolt shank and terminating atlits lower end in a shoulder, and a nut threaded on said threaded end of saidbolt shank and tightened against said shoulder to tension said spring washer to a predetermined degree determined by the lelngth of unthreaded bolt shank above said c 1p. 7

In testimony whereof, I have hereunto set my hand.

lapsed dimension of said washer, said unthreaded portion of said bolt shank termimating in a shoulder, and a nut threaded on said threaded end and abutting said shoulder to tension said spring. I

5. In a rail fastening having a rail seat on which the rail can rest, means for clamping the rail in position, said means includinga rail engaging clip, a bolt removably secured l I to said rail seat and projecting through said 

